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ATmega3208/3209 Data Sheet ATmega3208/3209
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23
USART - Universal Synchronous and Asynchronous Receiver and Transmitter
ATmega3208/3209
Introduction
megaAVR® 0-series Overview
Features
1
Silicon Errata and Data Sheet Clarification Document
2
Block Diagram
3
Pinout
4
I/O Multiplexing and Considerations
5
Conventions
6
AVR® CPU
7
Memories
8
Peripherals and Architecture
9
NVMCTRL - Nonvolatile Memory Controller
10
CLKCTRL - Clock Controller
11
SLPCTRL - Sleep Controller
12
RSTCTRL - Reset Controller
13
CPUINT - CPU Interrupt Controller
14
EVSYS - Event System
15
PORTMUX - Port Multiplexer
16
PORT - I/O Pin Configuration
17
BOD - Brown-out Detector
18
VREF - Voltage Reference
19
WDT - Watchdog Timer
20
TCA - 16-bit Timer/Counter Type A
21
TCB - 16-Bit Timer/Counter Type B
22
RTC - Real-Time Counter
23
USART - Universal Synchronous and Asynchronous Receiver and Transmitter
23.1
Features
23.2
Overview
23.3
Functional Description
23.4
Register Summary
23.5
Register Description
24
SPI - Serial Peripheral Interface
25
TWI - Two-Wire Interface
26
CRCSCAN - Cyclic Redundancy Check Memory Scan
27
CCL - Configurable Custom Logic
28
AC - Analog Comparator
29
ADC - Analog-to-Digital Converter
30
UPDI - Unified Program and Debug Interface
31
Instruction Set Summary
32
Electrical Characteristics
33
Typical Characteristics
34
Ordering Information
35
Package Drawings
36
Data Sheet Revision History
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23 USART - Universal Synchronous and Asynchronous Receiver and Transmitter
